Removal of Bromocresol Green from Aqueous Solution via Adsorption on Ziziphus nummularia as a New, Natural, and Low-Cost Adsorbent: Kinetic and Thermodynamic Study of Removal Process

被引：63

作者：

Shokrollahi, A. ^{[1
]}

Alizadeh, A. ^{[1
]}

Malekhosseini, Z. ^{[1
]}

Ranjbar, M. ^{[1
]}

机构：

[1] Yasouj Univ 75918 74831, Dept Chem, Yasuj, Iran

来源：

JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2011年 / 56卷 / 10期

关键词：

ACTIVATED CARBON; WASTE-WATER; BASIC DYE; ACID; COMPLEXES; RECOVERY; EFFLUENTS; WOOD;

D O I：

10.1021/je200311y

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In this study Ziziphus nummularia (ZPN) as a good, available and inexpensive adsorbent has been introduced and used for the removal of Bromocresol Green (BCG) from several water solutions successfully. The effect of various parameters such as pH, dye concentration, amount of adsorbent, size of adsorbent particles, and contact time on removal processing was investigated. To investigate the mechanism of adsorption, several kinetic models were tested including Lagergren, pseudosecond-order, particle diffusion, film diffusion, and Elovich models. Adsorption isothermal data could be interpreted by the Langmuir, Freundlich, Tempkin, and Dubinin-Rudushkevich (DR) isotherm models. Thermodynamic parameters like free energy (Delta G), enthalpy (Delta H), and entropy (Delta S) of the system were calculated.

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收藏

页码：3738 / 3746

页数：9

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